Attachment for pipe tongs or wrenches



(No Model.)

C. H. MILLER. ATTACHMENT TOR PIPE TONGS 0R WRENGHES.

f No. 273,874. Patented Mar. 13,1883.

llllllllllllll fha/TZ@ J ma/ CHARLES H. MILLER, OF ERIE, PENNSYLVANIA.

ATTACHMENT FOR PIPE TONGS OR WRENCHES.

SPECIFICATION forming part of Letters Patent No. 273,874, dated March13, 1883.

Application filed October 16, 1882.

To all whom it may concern Beit known that l, CHARLES H. MILLER, a,citizen of the United States, residing at Erie, in the county ot' Erieand State of Pennsylvania, have invented a certain new and usefulAttachment for Pipe Tongs orWrenches; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention consists in providing an attachment for pipe-tongs,whereby they can be used for cutting screw-threads on pipes, rods, etc.

The invention is illustrated in the accompanying drawings as follows:

Figure l is a perspective view of a pair of pipe-tongs provided with myattachment. Fig. 2 is a. vertical longitudinal section through thetongs. Figs. 3 is a perspective view ot' the sleeve C.

In Fig. 1 the device is shown in position upon a pipe, P, as whencutting a thread. In Fig. 2 the pipe P is omitted and a ferrule, G, isseen in the sleeve.

The pipe-tongs shown are similar to one recently patented by me; but myattachment is not limited in its use to this particular style ot' tongs,but can be applied, or so constructed as to be applied, to any tongs inwhich the die or bit D is moved within a recess in the head A of thetongs or wrench, substantially as or similarly to the wrench shown inthe drawings.

To operate the device the die or bit of the tongs must be removed andone adapted to the purpose of cutting screw-threads be substitutedtherefor; or the tongs bit may be made reversible, and have at one endthe construction necessary, and then it can be reversed when used forscrew-cutting.

The attachment proper consists of a sleeve, C, which is provided withflanges c c, and between the anges is provided with faces a ct, and isthus adapted to tit within the hook A2 -of the tongs. The sleeve is alsoprovided with an opening, c', between the tlanges, in proper positionfor the bit D to pass through. The form ofthe sleeve and the position ofthe hole (No model.)

c between the flanges c c will vary in accortiance to the style of tongsor wrench with which the sleeve is to be used. Then the die or bit ofthe tongs is moved by a handle or lever, B, as in the drawings, a clamp,F, is provided for holding the lever B in place While the device is usedas a screw-cutter; but when the die is moved by a screw the clamp is notrequired.

To adapt a sleeve to various sizes ot' pipes, ferrules G can be used inthe sleeve below the die and secured there by a set-screw, g.

The attachment, asa whole, would consist ot' the sleeve C, a set offerrules, G, a set oi' dies, D, and, with tongs like the one shown, theclamps F. Vith such a rig a plumber or fitter can quickly convert hispipe-wrench into a screw-cutter. The sleeve U may also have a secondhole, c2, in it for the purpose of enabling the operator to see when thecutting is properly done and for applying` oil to the cut ter whenwanted. This opening is not really essential.

What I claim as new isl. The sleeve C, having` exterior projectionsandan opening for the cutter, for the purposes set forth.

2. The combination, with a pipe tongs or wrench having a hook, A2, and adie or bit moving in a recess in the head A', of a sleeve, C, withdie-opening c', and adapted, substantially as shown, to be held by saidhook, with said opening opposite said recess, for the purposesmentioned.

The combination, with a pipe tongs or wrench having a hook, A2, and adie or bit moving in a recess in the head A by means of a lever, B, of asleeve, C, with opening c, and adapted, substantially as shown, to beheld by said hook, with the opening c opposite said recess. and a clamp,F, for clamping the said lever B against the handle A, all substantiallyas shown. e

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES H. MILLER.

Witnesses J No. K. HALLocK, RoB'r. H. PoR'rnR.

